<template>
  <div class="container">
    <div class="header"></div>
    <div class="battery"></div>
    <div class="battery-copy">
      <div class="g-wave"></div>
      <div class="g-wave"></div>
      <div class="g-wave"></div>
    </div>
  </div>
</template>

<script>
export default {}
</script>

<style lang="less" scoped>
.container {
  position: relative;
  width: 140px;
  margin: 200px auto;
}

.header {
  position: absolute;
  width: 26px;
  height: 10px;
  left: 50%;
  top: 0;
  transform: translate(-50%, -10px);
  border-radius: 5px 5px 0 0;
  background: rgba(255, 255, 255, 0.88);
}

.battery {
  position: relative;
  height: 220px;
  box-sizing: border-box;
  border-radius: 15px 15px 5px 5px;
  box-shadow: 0 0 5px 2px rgba(255, 255, 255, 0.22);
  background: #fff;
  z-index: 1;
  &::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    top: 80%;
    background: linear-gradient(
      to bottom,
      #7abcff 0%,
      #00bcd4 44%,
      #2196f3 100%
    );
    border-radius: 0px 0px 5px 5px;
    box-shadow: 0 14px 28px rgba(33, 150, 243, 0),
      0 10px 10px rgba(9, 188, 215, 0.08);
    animation: charging 5s linear 1 forwards;
    filter: hue-rotate(90deg);
  }
}

.battery-copy {
  position: absolute;
  top: 0;
  left: 0;
  height: 220px;
  width: 140px;
  border-radius: 15px 15px 5px 5px;
  overflow: hidden;
  .g-wave {
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 45% 47% 44% 42%;
    bottom: 25px;
    left: 50%;
    transform: translate(-50%, 0);
    z-index: 1;
    animation: move 5s linear 1 forwards;
  }

  .g-wave:nth-child(2) {
    border-radius: 38% 46% 43% 47%;
    transform: translate(-50%, 0) rotate(-135deg);
  }

  .g-wave:nth-child(3) {
    border-radius: 42% 46% 37% 40%;
    transform: translate(-50%, 0) rotate(135deg);
  }
}

@keyframes charging {
  50% {
    box-shadow: 0 14px 28px rgba(0, 150, 136, 0.83),
      0px 4px 10px rgba(9, 188, 215, 0.4);
  }

  95% {
    top: 5%;
    filter: hue-rotate(0deg);
    border-radius: 0 0 5px 5px;
    box-shadow: 0 14px 28px rgba(4, 188, 213, 0.2),
      0 10px 10px rgba(9, 188, 215, 0.08);
  }
  100% {
    top: 0%;
    filter: hue-rotate(0deg);
    border-radius: 15px 15px 5px 5px;
    box-shadow: 0 14px 28px rgba(4, 188, 213, 0),
      0 10px 10px rgba(9, 188, 215, 0.4);
  }
}

@keyframes move {
  95% {
    transform: translate(-50%, -180px) rotate(720deg);
  }
  100% {
    transform: translate(-50%, -200px) rotate(720deg);
  }
}
</style>
